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https://issues.apache.org/jira/browse/LUCENE-2791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12966487#action_12966487
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Uwe Schindler commented on LUCENE-2791:
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bq. Does is also allow for deletion of still-open files?
No, of course not. Thats native windos, files that are open cannot be closed.
No difference how the file was opened. Also MMapped Files cannot be deleted.
Windows does not support the semantics of unix in Win32 API (but it does in
POSIX! LOL), so open file: no deleting or changing
> WindowsDirectory
> ----------------
>
> Key: LUCENE-2791
> URL: https://issues.apache.org/jira/browse/LUCENE-2791
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Store
> Reporter: Robert Muir
> Attachments: LUCENE-2791.patch, LUCENE-2791.patch,
> WindowsDirectory.dll, WindowsDirectory_amd64.dll
>
>
> We can use Windows' overlapped IO to do pread() and avoid the performance
> problems of SimpleFS/NIOFSDir.
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